Naslov
Influence of ammonium, nitrate and nitrite on the performance of the pure culture of Acinetobacter junii

Autori
Hrenović, Jasna ; Orhan, Yüksel ; Büyükgüngör, Hanife ; Horvatiček, Miroslav

Izvornik
Biologia (0006-3088) 62 (2007), 5; 517-522

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Acinetobacter; ammonium; bacteria; nitrate; nitrite; enhanced biological phosphorus removal

Sažetak
The influence of different concentration ranges (0-500 mg L-1) of ammonium, nitrate and nitrite presence in the wastewater, on the performance of the pure culture of phosphate-accumulating bacterium Acinetobacter junii in the anaerobic and aerobic conditions, was investigated. A. junii was able to use ammonium and nitrate salts as the source of nitrogen, unlike in the case of nitrite salt. Comparing to the control reactors with the peptone and yeast extract as the sources of nitrogen, at the lowest tested concentration of ammonium and nitrate the performance of the system was inhibited due to the nitrogen deficit in the wastewater, while at the highest concentration was positively influenced. Nitrite in all concentrations detrimentally affected the phosphate release and uptake rates, chemical oxygen demand uptake rates, nitrogen uptake rates, as well as multiplication of A. junii. The higher the nitrite concentration, the more pronounced was the effect. At the highest nitrite concentration tested completely failure of the system was observed.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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